Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 834 · 40 questions

Remember (Sense, send, store, show): IoT device = an everyday thing that shares data over the internet (usually Wi-Fi and an app). Data flow: sensor → board → Wi-Fi → cloud → app (and commands back to an actuator). Readings sent = total time ÷ time between readings, in the same units.

1. 1.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
2. 2.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) phone app (c) microcontroller (d) Wi-Fi
3. 3.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
4. 4.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 8 minutes?
5. 5.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 9 minutes?
6. 6.Which of these is an IoT device? (a) a pencil sharpener (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) a battery torch
7. 7.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi weather station (c) a fitness band with app (d) a Wi-Fi doorbell camera
8. 8.What does the microcontroller do? (a) carries the data (b) measures the real world (c) shows data to you (d) reads values, decides
9. 9.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?
10. 10.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) microcontroller (c) cloud server (d) actuator
11. 11.What does the cloud server do? (a) carries the data (b) shows data to you (c) stores data online (d) measures the real world
12. 12.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) it is sent by Wi-Fi (c) the app shows it (d) the sensor measures
13. 13.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) actuator (c) cloud server (d) phone app
14. 14.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
15. 15.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Talk (c) Internet of Things (d) Inside of Toys
16. 16.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 6 minutes?
17. 17.🌐 In an IoT system, which part stores data online? (a) actuator (b) sensor (c) cloud server (d) phone app
18. 18.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain wall switch (c) a paper calendar (d) a smart energy meter
19. 19.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
20. 20.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) sensor (c) microcontroller (d) phone app
21. 21.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) over Wi-Fi (c) by shouting (d) by post
22. 22.What does the actuator do? (a) reads values, decides (b) acts on a command (c) measures the real world (d) shows data to you
23. 23.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
24. 24.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a wind-up clock
25. 25.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
26. 26.🔍 Which is the odd one out? (a) a fitness band with app (b) a pencil sharpener (c) a smart energy meter (d) a Wi-Fi weather station
27. 27.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) the cloud stores it (c) the board reads it (d) the sensor measures
28. 28.Which of these is an IoT device? (a) a fitness band with app (b) a wind-up clock (c) a pencil sharpener (d) a paper calendar
29. 29.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 40 readings take?
30. 30.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 150 readings take?
32. 32.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 10 minutes?
33. 33.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
34. 34.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) the board reads it (b) it is sent by Wi-Fi
35. 35.Which of these is an IoT device? (a) a wind-up clock (b) a paper calendar (c) a plain wall switch (d) an app-controlled bulb
36. 36.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
37. 37.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 10 minutes?
38. 38.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) a plain wall switch
39. 39.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) the sensor measures (c) it is sent by Wi-Fi (d) the app shows it
40. 40.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a plain table fan (c) an app-controlled bulb (d) a Wi-Fi weather station

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